20979680

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5701}}^1$

素因数の和:5739

約数の個数: 48

約数和(自身を含む): 51728544

約数和(自身を除く): 30748864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5701, 11402, 22804, 28505, 45608, 57010, 91216, 114020, 131123, 182432, 228040, 262246, 456080, 524492, 655615, 912160, 1048984, 1311230, 2097968, 2622460, 4195936, 5244920, 10489840, 20979680]

約数ペア:

[(1, 20979680), (2, 10489840), (4, 5244920), (5, 4195936), (8, 2622460), (10, 2097968), (16, 1311230), (20, 1048984), (23, 912160), (32, 655615), (40, 524492), (46, 456080), (80, 262246), (92, 228040), (115, 182432), (160, 131123), (184, 114020), (230, 91216), (368, 57010), (460, 45608), (736, 28505), (920, 22804), (1840, 11402), (3680, 5701)]